/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.consensus.iot;

import org.apache.iotdb.commons.service.metric.MetricService;
import org.apache.iotdb.commons.service.metric.enums.Metric;
import org.apache.iotdb.commons.service.metric.enums.Tag;
import org.apache.iotdb.metrics.AbstractMetricService;
import org.apache.iotdb.metrics.metricsets.IMetricSet;
import org.apache.iotdb.metrics.utils.MetricLevel;
import org.apache.iotdb.metrics.utils.MetricType;

public class IoTConsensusServerMetrics implements IMetricSet {
    private final IoTConsensusServerImpl impl;

    public IoTConsensusServerMetrics(IoTConsensusServerImpl impl) {
        this.impl = impl;
    }

    @Override
    public void bindTo(AbstractMetricService metricService) {
        MetricService.getInstance()
                .createAutoGauge(
                        Metric.IOT_CONSENSUS.toString(),
                        MetricLevel.IMPORTANT,
                        impl,
                        IoTConsensusServerImpl::getIndex,
                        Tag.NAME.toString(),
                        "ioTConsensusServerImpl",
                        Tag.REGION.toString(),
                        impl.getThisNode().getGroupId().toString(),
                        Tag.TYPE.toString(),
                        "searchIndex");
        MetricService.getInstance()
                .createAutoGauge(
                        Metric.IOT_CONSENSUS.toString(),
                        MetricLevel.IMPORTANT,
                        impl,
                        IoTConsensusServerImpl::getCurrentSafelyDeletedSearchIndex,
                        Tag.NAME.toString(),
                        "ioTConsensusServerImpl",
                        Tag.REGION.toString(),
                        impl.getThisNode().getGroupId().toString(),
                        Tag.TYPE.toString(),
                        "safeIndex");
    }

    @Override
    public void unbindFrom(AbstractMetricService metricService) {
        MetricService.getInstance()
                .remove(
                        MetricType.AUTO_GAUGE,
                        Metric.IOT_CONSENSUS.toString(),
                        Tag.NAME.toString(),
                        "ioTConsensusServerImpl",
                        Tag.REGION.toString(),
                        impl.getThisNode().getGroupId().toString(),
                        Tag.TYPE.toString(),
                        "searchIndex");
        MetricService.getInstance()
                .remove(
                        MetricType.AUTO_GAUGE,
                        Metric.IOT_CONSENSUS.toString(),
                        Tag.NAME.toString(),
                        "ioTConsensusServerImpl",
                        Tag.REGION.toString(),
                        impl.getThisNode().getGroupId().toString(),
                        Tag.TYPE.toString(),
                        "safeIndex");
    }
}
